Buffer member and buffer member forming material

Patent metadata

Field	Value
Publication number	US-11325770-B2
Application number	US-202016811190-A
Country	US
Kind code	B2
Filing date	Mar 6, 2020
Priority date	Apr 2, 2019
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A buffer member includes: a resin sheet welded in a bag-like shape; and a medium sealed in the resin sheet, wherein the resin sheet includes a plurality of buffer areas each having a shape extending longitudinally in a first direction and arranged adjacent to each other in a second direction orthogonal to the first direction, each buffer area of the plurality of buffer areas includes a first buffer chamber having a shape extending in the first direction, a second buffer chamber having a shape extending in the first direction and formed at a position separated from the first buffer chamber in the first direction, and a connecting flow passage connecting the first buffer chamber and the second buffer chamber.

First claim

What is claimed is:

1. A buffer member, comprising:
a resin sheet welded in a bag-like shape; and
a medium sealed in the resin sheet, wherein
the resin sheet includes a plurality of buffer areas each having a shape extending longitudinally in a first direction and arranged adjacent to each other in a second direction orthogonal to the first direction,
each buffer area of the plurality of buffer areas includes
a first buffer chamber having a shape extending in the first direction,
a second buffer chamber having a shape extending in the first direction and formed at a position separated from the first buffer chamber in the first direction, and
a connecting flow passage connecting the first buffer chamber and the second buffer chamber, the connecting flow passage includes two parallel edges that intersect the first direction,
a length of the connecting flow passage in the second direction is smaller than a length of the first buffer chamber and a length of the second buffer chamber in the second direction, and the connecting flow passage of one buffer area of the plurality of buffer areas and the connecting flow passage of an adjacent buffer area adjacent to the one buffer area of the plurality of buffer areas are separated from each other in the second direction, and
the connecting flow passage directs the medium flowing into the connecting flow passage from one of the first buffer chamber and the second buffer chamber along the first direction to bend in a direction intersecting the first direction, while redirecting the medium flowing out of the connecting flow passage and into the other buffer chamber of the first buffer chamber and the second buffer chamber to bend in the first direction again.

2. A buffer member, comprising:
a resin sheet welded in a bag-like shape; and
a medium sealed in the resin sheet, wherein
the resin sheet includes a plurality of buffer areas each having a shape extending longitudinally in a first direction and arranged adjacent to each other in a second direction orthogonal to the first direction,
each buffer area of the plurality of buffer areas includes
a first buffer chamber having a shape extending in the first direction,
a second buffer chamber having a shape extending in the first direction and formed at a position separated from the first buffer chamber in the first direction, and
a connecting flow passage connecting the first buffer chamber and the second buffer chamber,
a length of the connecting flow passage in the second direction is smaller than a length of the first buffer chamber and a length of the second buffer chamber in the second direction, and the connecting flow passage of one buffer area of the plurality of buffer areas and the connecting flow passage of an adjacent buffer area adjacent to the one buffer area of the plurality of buffer areas are separated from each other in the second direction, and
the connecting flow passage directs the medium flowing into the connecting flow passage from one of the first buffer chamber and the second buffer chamber along the first direction to bend in a direction intersecting the first direction, while redirecting the medium flowing out of the connecting flow passage and into the other buffer chamber of the first buffer chamber and the second buffer chamber to bend in the first direction again,
wherein the connecting flow passage has a shape directing the medium flowing into the connecting flow passage from the one buffer chamber along the first direction to bend in a direction parallel to the second direction.

3. The buffer member according to claim 1 , wherein
the first buffer chamber includes a first support part having a shape gradually increasing radially in the second direction as moving away from the connecting flow passage in the first direction, and
the second buffer chamber includes a second support part having a shape gradually increasing radially in the second direction as moving away from the connecting flow passage in the first direction.

4. A buffer member forming material that is formed of a resin sheet welded in a bag shape and forms a buffer member by sealing a medium in the resin sheet, comprising:
a plurality of compartment welded parts forming a plurality of buffer areas, each buffer area having a shape extending longitudinally in a first direction and arranged adjacent to each other in a second direction orthogonal to the first direction; and
a partitioning welded part that partitions each buffer area of the plurality of buffer areas into
a first buffer chamber having a shape extending in the first direction,
a second buffer chamber having a shape extending in the first direction and formed at a position separated from the first buffer chamber in the first direction, and
a connecting flow passage connecting the first buffer chamber and the second buffer chamber, wherein
the partitioning welded part includes
a first protruding welded part formed on one side of the connecting flow passage in the first direction, and having a shape protruding from one compartment welded part of the plurality of compartment welded parts toward an adjacent compartment welded part adjacent to the one compartment welded part of the plurality of compartment welded parts,
a second protruding welded part formed on the other side of the connecting flow passage in the first direction and having a shape protruding from the adjacent compartment welded part toward the one compartment welded part,
a first opposing welded part formed on the one side of the connecting flow passage in the second direction and having a shape protruding from the one compartment welded part toward the adjacent compartment welded part, and
a second opposing welded part formed on the other side of the connecting flow passage in the second direction and having a shape protruding from a site opposing the first opposing welded part of the adjacent compartment welded part toward the first opposing welded part,
a dimension between the first opposing welded part and the second opposing welded part in the second direction is larger than a dimension of the first opposing welded part and a dimension of the second opposing welded part in the first direction, and
the first protruding welded part and the second protruding welded part have an overlapping part overlapping each other across the connecting flow passage in the first direction.

5. The buffer member forming material according to claim 4 , wherein
the dimension between the first and second opposing welded parts is 70% or less of the dimension between the one compartment welded part and the adjacent compartment welded part in the second direction.

6. The buffer member forming material according to claim 4 , wherein
the first protruding welded part has a first inclined part having a shape inclined to gradually approach the one compartment welded part as moving away from the connecting flow passage, and
the second protruding welded part has a second inclined part having a shape inclined to gradually approach the adjacent compartment welded part as moving away from the connecting flow passage.

7. The buffer member forming material according to claim 6 , wherein
an angle formed between the first inclined part and the one compartment welded part and an angle formed between the second inclined part and the adjacent compartment welded part are 30 degrees or more and 60 degrees or less.

8. The buffer member forming material according to claim 4 , further comprising:
an injection part provided at an end part opposite to a side where the connecting flow passage is located in the first buffer chamber and from which the medium is injected into the buffer area.

9. The buffer member forming material according

Assignees

• Konica Minolta Inc

Inventors

• Hashimoto Takeshi
• Yoshida Narutaka
• Mizuguchi Hiromi
• Ideno Masakazu

Classifications

• B65D2519/00069

  Plastic · CPC title

• B65D81/056

  the surfaces being generally perpendicular to each other, e.g. three-sided corner protectors · CPC title

• B65D2519/00815

  on the pallet · CPC title

• B65D19/0093

  forming discontinuous or non-planar contact surfaces · CPC title

• B65D19/40

  Elements for spacing platforms from supporting surface · CPC title